NGC 3718

About image 

NGC 3718 in Ursa Major is classified like a peculiar barred spiral galaxy: indeed its shape is more complex, due to the interaction with the companion galaxy NGC 3729 visible on the bottom side of the image.
Both galaxies are located at a distance of about 49 million light years, and the distance between them is only 185000 light years.
To be noted in NGC 3718 the very evident dust lane crossing the central regions.
On the right of NGC 3718 is visible a group of galaxies, catalogued as Hickson 56: their estimate distance is about 400 million light years.

Technical data
Optic         GSO RC12 Truss - Aperture 304mm, focal lenght 2432mm, f/8
Mount       10Micron GM2000 HPSII
Camera        ZWO ASI 2600 MM Pro with filter wheel 7 positions
Filters        Astrodon Gen2 E-Serie Tru-Balance 50mm unmounted LRGB  
Guiding system   ZWO OAG-L with guide camera ASI 174MM
Exposure details  L 50x300" bin3 -15C

             R 16x300" bin3 -15C
             G 16x300" bin3 -15C
          B 16x300" bin3 -15C

                all gain 100
Total integration  8h10'
Acquisition      Voyager, PHD2
Processing      Pixinsight 1.8, Photoshop CS5, StarXTerminator, NoiseXTerminator, BlurXTerminator
SQM-L       21.00   
Location       Promiod (Aosta Valley, Italy), own remote observatory
Date           18 December 2023, 12/13 January 2024


© Roberto Marinoni 2019 - All rights reserved